igt@kms_cursor_legacy@basic-flip-.* - fail - Test assertion failure function basic_flip_cursor, Failed assertion: !(miss1 > 2 || miss1 + miss2 > 5)

http://gfx-ci.igk.intel.com/cibuglog-ng/testresult/1555268807?query_key=bd14ced3618e20113fb79889cbf0e75bbf4640d9

Stdout	
Opened device: /dev/dri/card0
Starting subtest: basic-flip-after-cursor-varying-size
Using pipe A & eDP-1
Stack trace:
  #0 ../../../usr/src/igt-gpu-tools/lib/igt_core.c:1988 __igt_fail_assert()
  #1 ../../../usr/src/igt-gpu-tools/tests/kms_cursor_legacy.c:818 basic_flip_cursor()
  #2 [<unknown>+0x0]
Subtest basic-flip-after-cursor-varying-size: FAIL (1.082s)

Stderr	
Starting subtest: basic-flip-after-cursor-varying-size
(kms_cursor_legacy:1720) CRITICAL: Test assertion failure function basic_flip_cursor, file ../../../usr/src/igt-gpu-tools/tests/kms_cursor_legacy.c:799:
(kms_cursor_legacy:1720) CRITICAL: Failed assertion: !(miss1 > 2 || miss1 + miss2 > 5)
(kms_cursor_legacy:1720) CRITICAL: Failed to evade 3 vblanks and missed 0 page flips
Subtest basic-flip-after-cursor-varying-size failed.
**** DEBUG ****
(kms_cursor_legacy:1720) igt_kms-DEBUG: plane C.2: Setting property "CRTC_W" to 0x0/0
(kms_cursor_legacy:1720) igt_kms-DEBUG: plane C.2: Setting property "CRTC_H" to 0x0/0
(kms_cursor_legacy:1720) igt_kms-DEBUG: plane C.2: Setting property "FB_ID" to 0x0/0
(kms_cursor_legacy:1720) igt_kms-DEBUG: plane C.2: Setting property "CRTC_ID" to 0x0/0
(kms_cursor_legacy:1720) igt_kms-DEBUG: plane C.2: Setting property "rotation" to 0x1/1
(kms_cursor_legacy:1720) igt_kms-DEBUG: plane C.2: Setting property "COLOR_ENCODING" to 0x0/0
(kms_cursor_legacy:1720) igt_kms-DEBUG: plane C.2: Setting property "COLOR_RANGE" to 0x0/0
(kms_cursor_legacy:1720) igt_kms-DEBUG: plane C.2: Setting property "pixel blend mode" to 0x0/0
(kms_cursor_legacy:1720) igt_kms-DEBUG: plane C.2: Setting property "alpha" to 0xffff/65535
(kms_cursor_legacy:1720) igt_kms-DEBUG: plane C.2: Setting property "FB_DAMAGE_CLIPS" to 0x0/0
(kms_cursor_legacy:1720) igt_kms-DEBUG: plane C.2: Setting property "SCALING_FILTER" to 0x0/0
(kms_cursor_legacy:1720) igt_kms-DEBUG: display:     populating plane data: C.3, fb 0
(kms_cursor_legacy:1720) igt_kms-DEBUG: plane C.3: Setting property "SRC_X" to 0x0/0
(kms_cursor_legacy:1720) igt_kms-DEBUG: plane C.3: Setting property "SRC_Y" to 0x0/0
(kms_cursor_legacy:1720) igt_kms-DEBUG: plane C.3: Setting property "SRC_W" to 0x0/0
(kms_cursor_legacy:1720) igt_kms-DEBUG: plane C.3: Setting property "SRC_H" to 0x0/0